If the pop-up window that says ScanPower recommends an unlimited data plan will not allow you to click out to access MOBILE all you need to do is close the app and re-open it. To do this:
Click the home button to return to the main screen
Double click the home button at the bottom of the phone
This will open a vertical list of running apps on your device
Find ScanPower and swipe up on it
Click the home button to return to the main screen
Now re-open the ScanPower app